package com.practice.communication.netty.demo;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;

public class TimeClientHandler extends ChannelInboundHandlerAdapter {
	
	private final ByteBuf firstMsg;
	
	public TimeClientHandler() {
		byte[] req = "QUERY TIME ORDER".getBytes();
		firstMsg = Unpooled.buffer(req.length);
		firstMsg.writeBytes(req);
	}

	@Override
	public void channelActive(ChannelHandlerContext ctx) throws Exception {
		ctx.writeAndFlush(firstMsg);
	}

	@Override
	public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
		ByteBuf buffer = (ByteBuf)msg;
		byte[] req = new byte[buffer.readableBytes()];
		buffer.readBytes(req);
		String body = new String(req, "UTF-8");
		System.out.println("Now is : " + body);
	}

	@Override
	public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
		ctx.close();
	}

}
